Malicious PDF — malware analysis report

Static analysis result for SHA-256 de7209cbed28b0e3…

MALICIOUS

PDF

44.4 KB Created: 2020-09-12 16:09:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dab0f3ecf163b9306cffed99aa18f524 SHA-1: 6754b17e731ff4752819287104a18fda9b8f051b SHA-256: de7209cbed28b0e389324ddc06d2005a068afb8578783283c1071b1b881b873b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a direct link to a known malicious redirector at 'https://ttraff.me/wix?keyword=source+filmmaker+free++android'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.me/wix?keyword=source+filmmaker+free++android
    • http://files.stpaulelca.org/uploads/1/3/1/8/131871730/faferanazizeweb.pdf
    • http://files.hoopspulse.com/uploads/1/3/1/4/131454221/9328cb.pdf
    • http://files.friederikeluisekelle.com/uploads/1/3/2/6/132683181/6947924.pdf
    • https://cdn.shopify.com/s/files/1/0433/4354/4488/files/mozart_alleluia_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/3156/8290/files/jugikapuxelifamirezota.pdf
    • https://cdn.shopify.com/s/files/1/0434/2752/8871/files/25147312961.pdf
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/chemistry_handwritten_notes_for_upsc.pdf
    • https://cdn.shopify.com/s/files/1/0433/4413/4294/files/dialectics_of_seeing.pdf
    • https://cdn.shopify.com/s/files/1/0431/0745/1029/files/pubovem.pdf
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/polymorphism_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/steam_boiler_design_calculation.pdf
    • https://cdn.shopify.com/s/files/1/0434/3873/5512/files/deadpool_1_movie_tamil_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3350/files/11670609063.pdf
    • https://cdn.shopify.com/s/files/1/0457/6916/2918/files/rubexiwerelasunavofekano.pdf
    • https://cdn.shopify.com/s/files/1/0448/5827/8050/files/visual_spatial_intelligence.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063fe.bin
7e7513baa01de0075ec8814469cdbe3214db78f4de895d9e906a29fecadd568f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63FE 4960 bytes
font_01_sfnt_off000074af.bin
4e29ff1514cd646c5ef2e8875007fefa000b5874e305ba5a89a04a7a794aa07e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74AF 9940 bytes
font_02_sfnt_off0000969a.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x969A 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.